Just asking....if your battery voltage drops below certain level it can cause havoc on loading tunes or even wipe out your PCM . Not saying thats what is going on but do you guys have good strong batteries ? And you can call SCT costumer support those guys are pretty helpful. Ive loaded alot of costume tunes and many different things has popped up and those guys have always been nothing but stand up for me in the past ! Also check with guys that sent you the tunes,alot of times they are more than helpful to....

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The problem isn't loading tunes to the truck the problem is loading tunes from the computer to the device. The custom tunes came from Vivian and she sent me another tune to make sure. I've tried with a different computer and I get the same problem, called SCT and they don't know what the problem is and will have to engage a software guy to see if the can make a work around but not hopeful since the don't support this device anymore. Hoping since this was a old post someone else had a answer?

I have tried different computers, operating system, drivers, and even the cable, SCT even took control of my computer and tried different versions. Problem is it's a old device and they don't support them anymore so they are not writing software for them anymore. The original poster has the exact same tune and error I am, surely he's gotten it fixed since 2012! Hoping he would see this and remember what was found on his.

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